# What is ray diagram in plane mirror?

## What is ray diagram in plane mirror?

A ray diagram is a diagram that traces the path that light takes in order for a person to view a point on the image of an object. On the diagram, rays (lines with arrows) are drawn for the incident ray and the reflected ray.

How many ray diagrams does a plane mirror have?

So to form an image we require at least two rays from the object which meet or appear to meet at a point. In the case of a plane mirror, here we have used three images for better clarity in the ray diagram shown below.

What are the rules to draw ray diagrams?

1. Pick a point on the top of the object and draw two incident rays traveling towards the mirror. Using a straight edge, accurately draw one ray so that it passes exactly through the focal point on the way to the mirror. Draw the second ray such that it travels exactly parallel to the principal axis.

### What are the three rules for drawing ray diagrams?

Rules for drawing Ray Diagram in Lenses

• Rule 1 – Ray parallel to principal axis will pass through focus. For a convex lens ,
• Rule 2 – Ray passing through focus will become parallel to principal axis. For a convex lens,
• Rule 3 – Ray passing through Optical Center will emerge without deviation.

What type of image is formed by plane mirrors?

virtual
A plane mirror forms the image of an object by reflecting the light rays coming from the object. The image formed by a plane mirror is virtual, erect and of the same size as that of the object, such that the object and its image appear to be equidistant from the mirror.

How many ray diagrams are there for concave mirror?

The intersection of these two rays after reflection gives the position of the image of the object. For a concave mirror any of the following four ray diagrams can be used for locating the image formed: a) A ray parallel to the principal axis, after reflection, will pass through the principal focus of a concave mirror.

## What are the two rays necessary in ray diagramming?

i) The ray of light that is parallel to the principal axis, it passes through the point F of the concave mirror after its reflection. Ii) The ray of light passing through the point C of the mirror, is reflected back on the same path after reflection from the mirror.